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C++ Code in C Files

GCC is literal in its interpretation of file suffixes. While CodeWarrior applies the C++ preprocessor and parser to C++ and C files alike, GCC will emit errors if C++ code is used in .c files. You can override this by changing the file's type to a C++ filetype (sourcecode.cpp) in the General pane of the file inspector. As long as the Compile Sources As (GCC_INPUT_FILETYPE) build setting is set to According to File Suffix, changing the filetype will cause Xcode to use the -x c++ option when compiling files whose type is a C++ filetype. Any explicitly set value for the Compile Sources As build setting overrides the filetype you specify in the General pane of the file inspector.

By default, when you import a CodeWarrior project, the Compile Sources As build setting is set to According to File Suffix. However, if you have Force C++ compilation set in your CodeWarrior target settings, the importer in Xcode 2.2 sets the Compile Sources As build setting for that target to sourcecode.cpp.cpp.

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